i wish i understood this thread. do i need to worry about any of this at 194k ?

 

Yeah, this thread is confusing. The op started out asking about a P0138 O2 sensor code. Then in his 2nd post he was asking about ECU part numbers. Then he started talking about fuses, referencing maxiiiboy's fusing mod to help protect the ECU from burning up the ECU when the IACV shorts out. Then there was brief reference to the coolant bypass on the IACV.

The IACV shorting and burning up the ECU is a 2000 and 2001 thing. The system was changed with the 3.5 engine in 2002.

 

It's not confusing at all!

Yeah I began the thread. The TSB requires a Reprogramming/update to the ECM after the O2 sensors are replaced to clear the P0138 code.

This update is specifically applied to cars with standard airflow meters.

This procedure was applied to my car by Bridgestone back in 2011 with out the update and three weeks later the ECM IACV(Air flow meter) burned up.

These certain members have jumped on the board and began advising me to implement improper fusing to prevent this. They basically informed me that it was coolant that shorted the airflow meter circuit out.

I was researching here and there on the issue and began investigating the TSB specifics.

These guys keep coming on the posts and giving reasons for damaged components that don't make any sense.

They keep posting the most ignorant comments about automotive electrical systems and forcing conclusions to issues without all the facts.

 

Need to settle down in here. Fusing prevents damage. It doesn't create problems unless you're using a bigger fuse

 

I could see how someone could logically assume that lowering the fusing could prevent more amperes from coming through but that logic is really ignorant!
The 7.5 amp fuse will only allow 7.5 amps through! 15 amps will not pass through therefore the 15 amps that normally would pass through is resisted to 7.5amps.

I'm not an automotive electrical engineer but I do know that 15amps doesn't pass through a 7.5amp fuse.

 

 

You truly have no concept of how this works and you're too stubborn to listen to explanations. Keep in mind that some of us have been working with this stuff for 20+ years and we know what we're talking about.

I feel like I'm trying to tell a 4 year old that 2+2 doesn't equal 5 and you're mad because you don't want to be wrong. That's really how basic a fuse is and you're trying to complicate it into something it's not. A fuse is the most basic thing imaginable. It has ZERO effect on the circuit till it pops.

 

 

these guys that have been at it for 20+ years I'd have to ask are they engineers? What is their position? Just mechanics that disassemble and follow instructions then reassemble with new parts?
That's a mechanic and mechanics are supposed to follow instructions.
It wouldn't make any difference if your an ASE mechanic because that's not an engineer.
I'm not a 5 year old I'm 37 and YOUR WRONG and so is maxiiiboy, cornholio, and anyone else that says implementing a 7.5amp fuse won't damage the car. It has. There is no other way my battery could've have split.
Consider that your wrong not me. I'm a max owner and have become an A33 tech. You can try to wiggle your way out of being wrong but if you think that 15 amps will pass through a 7.5 amp fuse your wrong.


Come to me with an argument.

 

7.5 amp fuse....600 amp battery... Lulz

Fuses are like tiny, brittle wires, they only pop and nothing more. And you just agreed with what he said, *****. Lmao. Understand basic physics, please.

Batteries short circuit and kill themselves all the time. I've seen it many times and can go completely bad in less than a day.

 

 

i have about 3 years of college level electrical/computer engineering education and while not a lot of that knowledge is still with me it's enough for me to know you don't have a clue what you're talking about. i'd be interested to know what your background is in this area

nobody thinks 15a will pass through a 7.5a fuse, that's exactly the point of installing it

lol to the fuse causing your battery to split

i think i'm convinced you're trolling at this point

 

I have to agree. I'm calling troll as well. It was funny at first but he's jumped the shark now. Nobody can possibly be this stupid without trying. I just feel sorry for that poor Maxima.